Underneath the existing units are there tiles? Or is it just the subfloor (concrete).
You should be able to build the units on top of the subfloor and then have the plinth hide the unfinished floor, the only thing to consider is the height difference between current tiles and future floor covering (which might affect how short you trim your plinth and the height you set your units)
Thanks, the units are currently on the subfloor. Guess that means that there's be no excavation of the floor under the units needed when we came to change, sounds promising.
Underneath the existing units are there tiles? Or is it just the subfloor (concrete).
You should be able to build the units on top of the subfloor and then have the plinth hide the unfinished floor, the only thing to consider is the height difference between current tiles and future floor covering (which might affect how short you trim your plinth and the height you set your units)